Different question on wfco

BFL, for years I have been convinced (though actual trial-and-error) that solar panels equivelant to 10% of total amp hour capacity offer just about the optimum balance of generator and solar. This is, of course, providing the skies cooperate and vacation is not during winter solstice.

My 3,300 amp hour bank would demand quite a number of panels to get me liberated from the Kubota or Lombardini. 330 amperes @ 28 vdc to be exact. Ten 33-ampere feeders to a buss bar. To say this is a little beyond my budget would be the understatement of the decade. Thankfully I have public power 70% of the time.

The bell-curve at this latitude allows an average of 5.5 hours with >80% theoretical max potential of panel output. Thankfully the bank is not stressed beyond 1,100 watts output counting MSW inverter loss.

Winning the lottery, panels, controllers and trackers would be nice...

cdcorpe wrote:
Thanks , what should I look for in volts & amps, & the time for each the next time I run it down to 50%?

Immediate 75 amps same as before.
Should hold 70+ amps until converter voltage hits about 14.6+ after which volts and amps will drop.

Unless this is some new model that may hold the 14+ volts for some additional time.

cdcorpe wrote:
Thanks , what should I look for in volts & amps, & the time for each the next time I run it down to 50%?

Same pattern as I posted earlier for my PM3 100amper, except for 75 amps on 232AH instead of 100amps on 458AH. You will still get that drop to 13.6 at about 70% SOC. Times will be similar to those in the 70amp on 220AH plot I posted earlier

When camping recharging by generator, just do 50-80s so you only do the 70-80 at the slower 13.6v. Even better, if you have solar going strong that day, just do a 50-70 on generator and shut off the gen when it drops to 13.6 from 14.8 then go on solar.

Thanks , what should I look for in volts & amps, & the time for each the next time I run it down to 50%?

Good news!

Don't ask me how, because that is how I fix most things. I was removing the Power Max so I could install the old Wfco & noticed a 1/2 piece of plastic laying on the circuit board I removed it & decided to check output one last time & it was 14.8(at the converter) 14.7 at the battery. Thank everyone for their help in resolving this problem & hope that was it.

Good picture! Hmmmm. I need to find out more about that product. Be a while.

I checked the volts from the converter with the master switch off & the same 13.1 I have pictures of my Power Max , but I can't find out how to insert them here.